U-743 was en route to its operational area off the North Channel when it entered Trondheim to repair its schnorkel on 20 August 1944. It left the next day and was posted as missing on 10 September 1944 after repeatedly failing to report its position.

Previously recorded fate

Sunk 9 Sept 1944 in the North Atlantic northwest of Ireland, in position 55.45N, 11.41W, by depth charges from the British corvette HMS Porchester Castle and the British frigate HMS Helmsdale. (Postwar assessment)Notes. This attack resulted in the sinking of U-484.

Attacks on this boat and other events

20 Jun 1944An attack by a British B-24 Liberator (86 Sqdn RAF/K) left one dead and two wounded. The boat returned to Bergen, Norway. (Sources: Blair, vol 2, page 595)

1 recorded attack on this boat.

Schnorchel-fitted U-boat

This boat was fitted with a Schnorchel underwater-breathing apparatus in July 1944.